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Related Experiment Video

Updated: Sep 13, 2025

U-Shaped Horizontal Swimming Technique for Preparing High-Quality Sperm with Low DNA Fragmentation Index
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Sperm Selection Using Microfluidic Techniques Significantly Decreases Sperm DNA Fragmentation (SDF), Enhancing

Alma Gisbert Iranzo1, Marina Cano-Extremera1, Irene Hervás1

  • 1IVIRMA Global Research Alliance, IVI Foundation, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Avenida Fernando Abril Martorell, 106-Torre A, Planta 1ª, 46026 Valencia, Spain.

Biology
|July 29, 2025
PubMed
Summary
This summary is machine-generated.

Microfluidic chips improve sperm quality and reproductive outcomes compared to conventional methods. While beneficial for specific patients, cost-effectiveness requires further study before widespread clinical adoption.

Keywords:
ICSIin vitro fertilizationmale infertilitymicrofluidicsreproduction

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Area of Science:

  • Reproductive Medicine
  • Biotechnology
  • Sperm Analysis

Background:

  • Sperm selection is crucial for assisted reproductive technologies (ART).
  • Conventional methods like swim-up and density gradients have limitations.
  • Microfluidic technology offers a novel approach to sperm selection.

Purpose of the Study:

  • To compare sperm parameters and reproductive outcomes between microfluidic chips and conventional sperm selection techniques.
  • To evaluate the efficacy of microfluidics in improving ART success rates.

Main Methods:

  • Systematic review and meta-analysis of 39 studies.
  • Comparison of sperm parameters (DNA fragmentation, motility, morphology) and reproductive outcomes (fertilization, implantation, pregnancy, live birth rates).

Main Results:

  • Microfluidics significantly reduced sperm DNA fragmentation and improved progressive motility, total motility, and morphology.
  • Higher rates of fertilization, implantation, clinical pregnancy, ongoing pregnancy, and live birth were observed with microfluidics.
  • No significant differences were found in embryo euploidy, biochemical pregnancy, or miscarriage rates.

Conclusions:

  • Microfluidic sperm selection shows promise, particularly for patients with high sperm DNA fragmentation.
  • Further research is needed to confirm its cost-effectiveness and impact on live birth rates for routine clinical integration.